I searched Google and found these instructions: -----Open up Disk Utility. Applications/Utilities/Disk Utility. From there.. select File/New -> Blank Disk Image It will bring up a Window.. which asks for a few things. Save As: Whatever you want. Destination: Where you want the image saved. (Usually the desktop for me.) Size: Whatever you want. (Select from the list, or custom.) Encryption: Select AES-128 (recommended) Format: read/write disk image. Hit Create. You will now see Disk Utility processing the information. From there.. you will get an Authenticate window. Now.. enter a password.. and verify it. IMPORTANT: uncheck the "remember password (add to keychain)" checkbox. If you don't.. the image will automatically open.. which is not what you want. Once unchecked.. select OK. Poof! You have a new disk image.. you can read and write.. and you MUST enter a password.. anytime you want to mount it.----- I got the blank image but I have no idea what to do after I have the image. I can't open the icon or put things in it. Can someone help me figure out how to password protect ONE folder or what to do after I have the blank image? Thanks.